JPS58112905A - Method and device for manufacturing bag type package - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION A variety of different devices have been constructed for forming bag-forming packages from banded web materials. For example, U.S. Pat. No. 2,918,769, 2.555.7
No. 58 and No. 8,045,405, the package includes a device for forming a bag-forming package in which the product is packed into a strip and the strip is wrapped to form a hollow space around the product. , and then by first laterally sealing the hollow at the groove end of the product and then laterally sealing the hollow at the trailing end of the product.
Formed around the product. Such devices pose some problems in controlling the position of the product within the strip after the product is packed into the strip and by the time the strip is laterally sealed on the groove and rear sides of the product. have Moreover, such devices are not suitable for packaging fluid materials. In so-called vertical formfil sea μ devices, for example, U.S. Pat.
As described in US Pat. No. 288.965, a band web material is formed within the hollow when the groove end of the hollow is advanced downwardly and the hollow is laterally sealed at its lower groove end. The product is guided to the top of the hollow while the hollow remains in the band. The hollow is then laterally sealed and cut at the back of the product within the hollow to separate the bag-forming package from the band.

In such devices, the filling of the bag is carried out while the hollow remains in the band, since the time required to advance the sleeve and seal the sleeve is, at least to some extent, additive with respect to the filling time. , generally increasing the overall cycle time. Further, in such devices, the band web material is formed into a downwardly extending hollow by pulling the web material over the profile shoulder, which creates stresses in the web. The stress causes stretching and scaling of the web material. In another type of apparatus for packaging products within a strip web material, for example, US Pat. No. 8.000.152, no.
No. 79°948 and No. 8,952,480, the band web material is formed into a conventional flat bag, and the flat bag is then exposed to an air plast outside the bag, a vacuum cup, Alternatively, it may be reopened for continuous filling by means such as a plow. However, problems exist with such devices in achieving reliable reopening of the mouth of the flat bag.

It is an object of this invention to provide a method for manufacturing bag-form packages from band web material with an improved system for supporting and feeding the groove ends of the band and for forming bags that open at the groove ends of the band. and provision of equipment.

Another object of the invention is that the grooved ends of the band web material
The bag is advanced to a filling station where it is formed into a bag that opens at the groove end of the strip, and the bag with the open end is separated from the strip at the opening station and transferred to the filling station with its open end facing upwards. and thereafter transferred to an interbag loss station, wherein filling of one bag and closing of the previously filled bag is accomplished while another bag is formed and advanced to the bag opening station. A method and apparatus for manufacturing bag-type packages from materials is provided.

Various other objects of the invention include that the length of the bag is easily changed, that the length of the bag is associated with indicia printed on the band for recording the indicia printed with the bag, and that the length of the bag is related to the indicia printed on the band for recording the indicia printed with the bag; For producing bag-form packages from strip web material that can be adapted for multi-lane operations so that downsizing of the strip web material is minimized and increases the package production of the packaging equipment. Provided are methods and apparatus.

The invention further provides that the elongated mandrel moves longitudinally along the feed path during forward and return strokes, the ends of the band web material are formed into a sleeve about the mandrel, and the sleeve with the grooved end facing forwardly comprises at least The mandrel is advanced along the feed path to a forward position during a portion of its forward travel, the groove end of the sleeve is open, and the sleeve is inwardly of the groove end such that the sleeve forms a pouch within the sleeve that is open at the groove end of the sleeve. and the sleeve is cut at a location inward of the lateral seal to separate the bag from the three 1, providing an unsealed groove end to the remainder of the sleeve. The present invention provides a method and apparatus for manufacturing bag-type packages from banded web material that can be used.

Positive opening of the groove end of the sleeve is achieved by moving the front end of the mandrel through the groove end of the sleeve and then retracting the front end into the sleeve prior to lateral sealing of the sleeve.

Transfer of the bag to the bag opening station, the bag filling station, and further to the tearing loss region is accomplished by a transmission mechanism having a plurality of gripper assemblies, the transmission mechanism being operable to roll the bag; The bag with its open end facing upwards is moved to the same filling station that holds the bag opening, and the rear wrapping is moved from the bag filling station to the tear-and-loss section.

The packaging device is arranged to produce bag-form packages from a strip web material (5) and includes an elongated mandrel (5) mounted for longitudinal movement along a feed path (9) on forward and return strokes. 5). Furthermore, the packaging device comprises means having a side sealing device (B) for forming the end of the band web material around the mandrel into a sleeve with a grooved end, and the sleeve with the grooved end facing forward at least during the forward movement of the mandrel. A feeding means (C) for advancing the sleeve along the feeding path to a forward position, a sleeve opening means for opening the groove end of the sleeve, and a bag inside the sleeve that opens at the groove end of the sleeve. The inner side of the transverse seal is sealed and separated in the three-km direction at locations spaced inwardly of its groove ends to form an unsealed groove end for the remainder of the sleeve. and a cutting means (t) for cutting the sleeve at one position. The transmission mechanism (Q is provided with a plurality of bag gripper assemblies OD,
The bag gripper assembly (QI) is operated to grip the open end of the bag at a bag opening station adjacent to the mandrel (A) and moves the bag from the bag opening station to the lower part of the product distributor (J). The filled bag is then moved from the filling station to a top closure and sealing station adjacent to the top closure and sealing mechanism (K). Bags from the top closing and sealing mechanism (K) are transferred to the exit conveyor (L)
and removed from the device. The packaging equipment is
To form a bag from the band web material (5) which is longitudinally folded onto itself, the side seams (81), the bottom seams (82) and the top seam (82) are further formed as shown in FIG. arranged to produce a package (P) with a seam (S8). In a preferred embodiment, the packaging device is a multi-lane device with mandrels for multiple lanes arranged in close proximity.

As best shown in FIGS. 4 and 5, the support frame for the packaging device includes a base C3ω, intermediate upright frame portions (361, (37), and end frame portions (2), G springs). A number of mandrels lv(t) for a multi-lane device are of the same structure and have crossheads G(i K is installed.

In the preferred embodiment, the mandrel is mounted for reciprocating along a general vertical path, and the mandrel is mounted to reciprocate along a general vertical path, as shown in FIGS.
As best shown in the figure, bushings (
41) e4.

The mandrel is raised and lowered by a pair of levers (451) rigidly fixed to both ends of the shaft (4fi), and the mandrel (16) is rotatably mounted on the bearing (47) of the intermediate frame part (Peng and C (7)). Both outer ends of the lever are connected by links (=+8) to the guide (40) for the crosshead (41).As shown in FIG. The arm (5) is conveniently provided and connected to the arm (5) and is arranged to at least partially balance the weight of the crosshead and mandrel.

Lever (1), best shown in Figures 3 to 6, is driven by a drive mechanism that allows variable adjustment of the mandrel stroke and the length of the package produced by the machine. , the shaft (54) is rotatably supported in bearings (55) and (56) of a fixed frame structure, and the arm 67) is supported on the shaft c14) for rocking movement relative to the vertical plane. Arm G7)
The free end of the mandre is connected to the crank G by a link (!'1 barrel).One of the levers (49) for raising and lowering the knee is connected by a link (!・Connected to 0, serving (61) is shaft 5
4), the arm (57) is movable along the thrower (57(Z)).
) to allow adjustment of the screw shaft 69
is attached to the arm for rocking movement around the axis of the shaft (i41), and is attached to the follower f (i41) so as to move the follower along the slot (57α) in response to the rotation of the screw shaft. The worm gear (67) is operatively connected to the worm gear (67α) of the shaft eli4 (Figs. 3 and 6).
The intermeshing and manually operated shaft cocoon is connected to the shaft 64) via a right angle gear drive mechanism συ for rotation from a position at the front of the shuttle device.

In Figures 3 to 6 and Figure 33, the crank (5
9) is intermittently driven by a motor (731) via a belt drive mechanism (74), a clutch brake (75), a deceleration mechanism (76), and an index drive unit (77).Clutch brake The unit (75) is
At the clutch output (75h) of the clutch-brake unit, the continuous rotation clutch is of a known type and is shown diagrammatically in FIG. 33.
(75z) A clutch (75c) that is selectively activated to engage i-drive and a brake (75d) that is activated to stop the clutch output shaft (75A) when the clutch is not activated. Motsu. The reduction mechanism unit has a preset reduction ratio, for example, 20:1, and a clutch (75 (?) is the output shaft of the reduction mechanism).
(76a) for one revolution, and then remains for a set time interval, driving the clutch output shaft l-CT5h) a number of revolutions corresponding to the reduction ratio of the reduction mechanism (16). Activities on a regular basis.

The deceleration output shirt (76cL) extends through the indexing drive unit σD and is connected to the crank (59) so as to rotate the crank together with the shaft (76α). The clutch pre-cunit is activated under the control of a cycle controller, the cycle controller being operative to initiate activation of the clutch at preset time intervals corresponding to the overall package device cycle time;
After completing one rotation of the engine'F foot (76α), the clutch is not activated and the telegraph is activated.For example, the cycle control device operates the reducer (791 The first cut shaft (78) is drivingly connected to the clutch brake unit (7ω continuous rotation input shaft (75α) through the
and a second camshaft which is drivingly connected to the intermittent rotation output shaft (76α) of the speed reducer (76) through a drive mechanism with a ratio of . In this way, the camshaft end rotates one revolution intermittently when the crank (59) rotates one revolution.

The reducer (79) is arranged to drive the camshaft (781e) in a continuous manner at a speed such that the shaft (country) completes one revolution in a time corresponding to the overall package equipment cycle time. For example: When driven by the clutch input shaft (75a) 75E 120 ORPM, the 30 to l reduction ratio of the reducer (79) is as shown by the lower scale in FIG. This means that one revolution is completed per second.The reduction gear mechanism (76) has a reduction ratio of 20:1.The clutch brake unit has a 20:1 reduction ratio on the clutch input shaft.
It is activated to rotate and drives the reducer output shaft to rotate VC1 for 1.0 seconds. As shown in Figure 33, the activities of the clutch (75t?) and brake C75h) are as follows:
Relay (c) relay switch (83α] and <8Rh)
controlled by Relay (83) is camshaft +78),! = (goods) cam (78α) and (80h)
The cam (78α) activates the clutch (?5c), deactivates the brake (75d) of the clutch brake unit, and decelerates. The machine output shirt (76a) is arranged to start the cycle/L' by the close switch 4). The cam (80h) of the camshaft (goods) then closes the switch @ until the shaft (76α) completes one rotation.
5) Perform all operations. The cam (78α) opens the switch before the reducer output shaft (76α) completes one revolution, and the shaft (76α) stops when the cam (80h) opens the switch (8Sl?). (76α) then remains until the cam (78α) closes the switch 1841Th again. Other cycle control systems are provided and the cycle control system is arranged so that these techniques are readily understood. Cycling is under the control of the equipment that manufactures and dispenses the product, so that it is simultaneously manufactured and packaged.

In the time diagram of FIG. 84, the overall cycle time in seconds is shown on the scale along the bottom of the diagram, and the position of the crank hammer in degrees is shown on the scale along the top of the diagram. In the above example, the crank (591) completes a 360° rotation in 1.0 seconds, substantially completing the rotation before the end of the total cycle time of 1.5 seconds. It is clear that can be varied by changing the speed of the input shaft (75a) of the clutch-brake unit, ie by using a variable speed bell seat drive mechanism σi.

The web material from which the package is formed is preferably of a heat-sealable type, such as a heat-sealable plastic material or paper covered with a heat-sealable coating. . As shown in FIG. 1, a plurality of rows /l/ (R) of web material are supported on web distribution stands conveniently located at one end of the packaging apparatus, preferably at both ends. In this embodiment, the packaging apparatus is arranged to form a package from the band web material, the band web material is folded lengthwise over itself, and the web distribution stand is arranged for folding the band web material onto itself. A folding book woman and an analysis of folded webs, supplying low/l/
(R) to the outflow guide roller shaft, each having a distribution roller (to) which operates to assist in guiding the feed υ.

The web distribution stand is, for example, of the type described in US Pat. No. 4,281,560, which is described in more detail. As fully described in that patent specification, the drive of the distribution roller is controlled in response to tension in the web as it exits the distribution roller, and the distribution roller feeds the packaging device. The web is fed to the packaging device at a rate that maintains a generally low, uniform tension in the web.

A vertically folded strip of web material is a mandre/I/(
An idler roll (9) placed below each of the Vt and vertically aligned; It is opened sufficiently.

The longitudinal seaming mechanism (3) and the feeding mechanism (C) are arranged in time relation to each other and with the reciprocation of the mandrel so as to longitudinally seal the folded web to form the sleeve and feed the sleeve upwardly. Operated in a time-related manner. of the longitudinal seam mechanism) is attached to the support member (9,1), and as best shown in Figures 9 to 12, the longitudinal seam mechanism includes a plurality of fixed sealing joint members and a package. a reservoir for each lane of the device, and a corresponding plurality of moving sealing jaw members (93), the plurality of moving sealing jaw members securing opposite ends of the band web material to form a sleeve. and are each adapted to cooperate with a respective one of the fixed sealing jaw members for sealing. A stationary sealing jaw member (92) is attached to a bar (94) heated by a heating plate t1 electric heating element (95) to effect a thermal seal of the band web material.A moving sealing jaw member (9( The lever (6) is supported on the lever (head) and the support rail (98
) are pivotally attached at both ends of them at the middle gate by Vivo Nodvin punishment. For reasons that will become apparent from the discussion below, each of the multiple moving sealing jaw members has an actuator that is selectively actuated to move the associated jaw member into and out of a fixed position. do. As best shown in FIGS. 9-11, the actuating device includes a fluid cylinder (102) mounted by a support member (9υ bracket) (102).
01), the fluid cylinder (101) of which has a piston (101α) connected to each one of the levers ((g)) by a clevis (108).The movable jaw member (93) is generally a fixed jaw member. Parallel to (92), the movable jaw members extend the strip of elastic material so as to elastically secure the overlapping longitudinal ends of the longitudinally folded strips of web material to the respective stationary jaw members. Preferably, the plurality of pairs of relative covered fin guides (104) and (105) have resilient jaw surfaces (98α) forming
supports ( 91 ). One fin guide (104) of each pair has a support (
91) fixedly mounted on the support L/-)V (106), the other guide (105) of each pair being supported for longitudinal movement on the support (91) It is attached to the support layer L/(107), thereby allowing movement of the guide (105) away from the guide (104) and facilitating threading of the web material by the longitudinal seam mechanism. Means such as bar (108) are pivoted) (1
09) to the support (91), and the guide (1
05) into and out of their guide position, the pins (110) K thereby
) is connected to.

A feed mechanism (C) is provided in each lane for gripping the sleeve 1 of wrapping material during at least part of the upward movement of the mandrel and for feeding the sleeve upwardly along the path of movement of the respective mandrel. Have individual means. In a preferred embodiment, the feed mechanism (C) has means for securing the sleeve to the associated mandrel during at least part of the upward stroke of the mandrel, and for loosening the sleeve 7 on the return stroke of the mandrel. The multiple V-:/(D*) feeding mechanisms of the wrapping device are conveniently attached to a crosshead (111) supported at each end thereof by plaquettes (112);
Returns the guide (4υ legs (118)) for vertical movement in line with the mandrel. As best shown in FIGS. 18 and 14, the feed mechanism for each lane of the wrapper has a pair of counterfeed pistons (116a) disposed on both sides of each mandrel at opposite end positions of the counterfeed pistons (116a).
) is attached to the crosshead (111) and is slidably installed in a cylinder (116) provided in the cylinder head (118). The piston is supported by a spring (11) interposed between the piston and the head of the guide pin (119α).
9), the pistons are forcefully forced into the retracted position away from their respective mandrels by the O-rings (121).
are sealed to each cylinder by. The pistons can be selectively extended to their fixed position by the introduction of fluid pressure through the flow passages (122).

As shown schematically in Figure 33, the control valve (
123) is provided for each lane of the wrapper and each control pulp transfers fluid pressure from the supply line (120) to the cylinder (101) associated with each of the lanes (
116) and are arranged to feed inversely. To simplify the drawing, control of only three lanes is shown in FIG. 33, and it is clear that control of the remaining f=j lanes is provided in the same manner. The control pulp (123) of each lane reservoir is connected and in the first valve position shown in FIG. 33, while venting fluid pressure from the cylinder (101) to loosen the clamp jaw member associated with that lane Fluid pressure is applied to the pair of cylinders (116) associated with that lane to move the counterfeed pistons (116α) to their feed positions.
When the feed piston (128) moves into the second position, the application of fluid pressure acts inversely on the associated cylinders (101) and (116'), moving the clamp jaw members into their fixed position, while the feed piston ( 116 (Z) are moved to their relaxed position.The valves (128) are normally biased to their second position and are actuated by the electrically responsive valve actuator (123α) in simultaneous relation to the reciprocation of the mandrel cA). selectively moving to their first position. As shown in FIG.
) operated by a cam (80h) of the switch (124
) operates under the control of

The cam (80A) has a large number of valve actuators (123a)
activating the associated pulp at least during a majority of the upward stroke of the mandrel so as to send the web material upwardly with the mandrel.
move to position. The crank drive mechanism gradually accelerates the mandrels as they leave one end of their travel and gradually decelerates them as they approach the other end of their travel.

The pulp (128) is fed as the feed piston (116α) feeds the web, at least during the majority of the mandrel's upward stroke, with a change in average bag length acting by adjusting the mandrel stroke as previously described. However, changes in web feed are also achieved by changing part of the mandrel's upward stroke, while the feed piston fixes the web to the mandrel, and the feeding is carried out along with the printed bag. Conveniently, it is provided to associate the advance of each swath of web material with the printed indicia of the swath, so as to obtain a preset record of the indicia.

As shown diagrammatically in FIG. 33, a photoelectric detection device (129) is provided for each lane of the wrapper, each 4 of which records the web as the strips advance to their raised position. It has a light beam transmitter (1291Z) and a phototube (129h) shown in FIG. 28, which are installed to detect marks. A photoelectric detector (129) for each lane is arranged to operate its own relay switch (129C) in series with the lane's associated electrically responsive valve actuator (128α), in this embodiment. In , the photodetectors are of the type that are activated to open their normally closed relay contacts (129C) when the phototubes (129b) detect a dark recording mark. Relay contact (129C)
The opening of the associated pulp actuator (128(Z) i&
: without activation, each pulp (128) is its second
Move to the desired position and pause while the web is being fed. Photoelectric detector (129) is active only during part of Fi Milaev's ascent stroke, the activity of the detector is limited to the cams (8)
0α) is operated by a switch (180). The manual operation switch (181) is a switch (
When the cam switch (181) opens, the cam switch (181) is opened to allow operation of the device without control by the photoelectric web recording device.
80) in series.

The mandrel (A) supports and guides the sleeve as it advances upwards, and according to the invention, the feed is carried out in a three-to-two manner so as to extend at least the grooved end of the mandrel and preferably to open the sleeve [1]. It is moved so as to pass through the edge of the groove. Mandre tv (A) is
having a cross section somewhat smaller than that of the sleeve;
As shown in this embodiment, it consists of a pair of vertical mandrel bars (125) connected by cross arms (126) and (127) at a distance from each other, and the mandrel bars are connected to each other by crossheads (4). It is attached to the end of the net by an arm (128).As best shown in FIGS. It is preferably arranged and is preferably arranged in close proximity to the web feed piston (116α) so as to provide a general plane on both sides of the mandrel for cooperation with the counterfeed 9 piston (116α). of the sleeve opening device) is provided at the upper end of the mandrel and is arranged to open the groove end of the sleeve when the sleeve opening device is moved to the groove end of the sleeve. The sleeve opening device comprises a pair of vanes (182) spaced apart in the direction of the major lateral dimension of the mandrel. As shown in FIG. 4, the vanes (181) preferably have a width approximately equal to the width of the minor lateral dimension of the mandrel and are rotated at their upper ends to facilitate movement through the grooved ends of the sleeve. The sleeve opening device (D) is mounted for movement with the mandrel and is also conveniently mounted for extension and retraction in relation to the mandrel. As shown in FIG. 8, each sleeve opening r with respect to the associated mandrel
The extension and retraction of MΦ) is accomplished by a fluid actuation device (188), which is attached to the arm (128) between the mandrel bars (125) and has an actuation rod extending upwardly between the mandrel bars (125). (188α)
and is connected to a sleeve opening device (CD).

As best shown in FIG. 32, the blades (181) of the sleeve opening [1 device] are connected to each other at their lower ends by armatures (184) that are connected to the upper end of the actuator rod (138α); A guide pin (185) is provided at the upper end of the mandrel bar (125) and extends through the opening in the cross arm to guide the same during extension and retraction associated with the mandrel. Fluid operated device (
The sleeve opening device (188) is preferably of the type with an internal return spring (not shown) to normally return the sleeve opening device to its retracted position relative to the mandrel; It is provided in the arm (128) so that the lower end of the actuator (188) communicates with the fluid pressure supply channel (189) of the crosshead (4()).

As shown schematically in FIG. 83, the valve (186)
Applying fluid pressure to a number of actuators (188).

The cam of the camshaft (
an electrically responsive valve actuator (186α) actuated under the control of a switch (187) actuated by the mandrel (80g), thereby effecting the extension and retraction of the sleeve opening device associated with the mandrel in time relation to the reciprocation of the mandrel; do. ``Sleeve opening'' clearly marked in Figure 34
As shown diagrammatically by the Nurieve opening device, the Nureve opening device is adapted to effect opening of the sleeves before the sleeves reach their fully raised position, and while the sleeves are in their raised position. It extends relative to the mandrel to hold the sleeve in the open condition.

The bag bottom sealing mechanism (G) and cutting mechanism (F') are operated in synchronicity with the reciprocation of the mandrel to seal the sleeve at a position spaced below its top end by a distance corresponding to the desired bag length. It is arranged to seal and to cut the bag at a location below the lateral seal. The lower transverse sealing mechanism and cutting mechanism are conveniently mounted for vertical adjustment. As best shown in Figures 8 and 22 to 26, the transverse sealing mechanism (with) and the cutting mechanism (F) are mounted on a horizontally arranged guide bar (141), Bar (141)
are supported at their ends by a head (142). The head (142) is mounted so as to pass through the upright screw (148), and the upright screw C148) connects the middle t~frame part (t) and (3) at their upper and lower ends.
7) is rotatably supported by the bearing bracket (144) and (145). The screw (148) is shown in Figure 8 (
It is rotatable by a worm and worm gear drive mechanism shown at 148) to vertically adjust the lateral sealing and cutting mechanisms to form the desired bag length.

The transverse sealing mechanism (g) has a plurality of pairs of sealing jaws (151) and (155), with one pair associated with each lane of the multi-lane packaging device. The sealing jaws are disposed on relative sides of the path of the sleeve as the sleeve advances upwardly and are movable relative to each other and away from each other so as to simultaneously secure and seal both sides of the sleeve. It is. Seal Joe (151
) are mounted at spaced locations along bar (152), and bar (152) is attached to guide bar (141).
) Supported by the military (158) to move along K. The bar (152) is an electric heater (154).
), the jaw (151) is made of a thermally conductive material, and the thermally conductive material has its surface (151α)
It is adapted to be heated by a heater (154) to a temperature that simultaneously acts to heat seal the overlapping plies of the sleeve. Joe (155) is bar (156)
), and the bar (156) is attached to the follower (157) of the guide bar (141) for movement along the guide bar (141).
Supported by

As best shown in FIG.
Preferably, the resilient jaw surface (155α) comprises a resilient jaw surface (155α) that connects the overlapping ply of the sleeve to the sealing jaw (15
1) is adapted to be elastically fixed to the jaw surface (151α). A cutting mechanism (Fl) is arranged to cut the sleeve at a location below the transverse seal formed by the jaws (151) and (155).The cutting mechanism is associated with each lane of the multi-lane packaging machine. a pair of cutting jaws (15g) and (159),
A pair of cutting jaws (158) and (159) are typically positioned on relative opposite sides of the path of the sleeve. As best shown in FIG.
58) is conveniently formed completely with the sealing jaw (155) and is arranged at a level below the jaw face (155α). The outer cutting jaws (159) of each pair of cutting jaws are mounted at spaced locations along a bar (161), with the bar (161)
) is supported close to its ends. in this way,
The cutting jaw (158) moves in unison with the clamping jaw (155) and the cutting jaw (159) moves in unison with the clamping jaw (151). As shown in FIG. 22, the cutting edge (159α) of the jaw (159) diverges in a direction away from the bar (161) associated with the cutter jaw (158), and as shown in FIG. , the cutting edge (159α) of the jaw (159) is
) is normally inclined upwardly in a direction away from the bar (161). The jaw (159) is guided in a slot (161α) of the bar (161), and the jaw (159) is supported by a spring C168 towards the stop formed by the head of the bolt (164).
) It is forced upward by K. In this way, the cutting jaws (158) and (159) approximate a scissoring action somewhat, and the lower cutting jaw (159) is forced to maintain contact with the cutting blade when the cutting jaw is closed. ing.

As mentioned above, seal jaws (151) and (156)
When the sleeve advances upwards, the wrapping material
The cutting jaws (158) and (159) are similarly arranged on the relative sides of the path of the three 1. Three 1
moving the sealing and cutting jaws of each pair relative to each other in order to simultaneously secure the overlapping plies of the sleeve in a plane located intermediate between the opposite sides of the sleeve; It is convenient to cut. Therefore. , the dual actuating device has one actuating device (168) arranged to move the sealing jaw (155) and the cutting jaw (15B) to the left, as shown in FIG. As shown, a sealing jaw (151) and a cutting jaw (159)
) to the right. Actuation device (168) and (1
69) are preferably of the same construction and are preferably arranged in opposite relationship. Actuation device (16
8) and (169) apply substantially equal and opposite forces when fluid pressure is applied to corresponding ends of the cylinder of the fluid actuated device. The bottom sealing jaw and the cutting jaw are operated in time relation to the reciprocation of the mandrel, and
As shown schematically in the figure, valve (17o) controls the flow of fluid pressure to both actuators (168) and (169), and valve (170) controls the flow of fluid pressure to both actuators (168) and (169), and valve (170) controls the flow of fluid pressure to both actuators (168) and (169), and valve (170) 78b) with an electrically responsive actuator (170cz) active under the control of a switch (171) actuated by 78b). The bottom sealing and cutting jaws hold the opening as the mandrel is raised and lowered, and the opening upper end of the sleeve is shown diagrammatically by 1 bottom sealing and cutting' in FIG. 34. The mandrel closes when it reaches its lowered position so as to seal and cut the sled 1 in its lower position.

As mentioned above, the clutch brake mechanism (75).

In the position where the mandrel (A) is in its lowered position,
The clutch brake is arranged to stop the crank (59), and when it is activated, the first 1800 rotations of the crank (59) cause the mandrel to stop, as shown by the mandrel' marked in FIG. 34. Move the mandrel upward and then move the mandrel downward. When the mandrel moves upwardly to its raised position, the side seal and retaining clamp (B) is removed, as diagrammatically shown by the side seal clamp' and 1 web feed' lined in FIG. acts on its loosened position, and the feeding mechanism (C) acts on its fixed or fed position.

When the mandrel moves downwards, the side seals and retaining clamps move to their fixing and sealing position while the feed mechanism (C) moves to its relaxed position, and the side seals and retaining clamps move towards the retraction of the mandrel. holding the sleeve in position. of the sleeve opening device) extends upwardly in relation to the mandrel, preferably at the time of opening before the mandrel reaches its fully raised position;
As shown by the curved five-slot aperture in Figure 34, the sleeve opening device is operated until after the mandrel has reached its fully raised position and preferably after the mandrel has begun its downward stroke. The bottom sealing mechanism (t) and cutting mechanism (t), maintained in their extended position until the mandrel extends upwardly and then retracts downwardly, holds the opening and forms a pouch at the end of the sleeve. to laterally seal the sleeve in a position below the upper end of the sleeve and to cut the bag from the sleeve after the mandrel has been retracted to a level below the sealing and cutting mechanisms. do.

The gripper assembly φD of the transmission mechanism (G) is arranged to grip the open end of the sleeve when the groove end of the sleeve rises to a preset position at the bag opening station, and the gripper assembly φD of the transmission mechanism (G) operates to transfer the bags to a filling station adjacent to the bag loading station Calafira CJ) and thereafter to transfer the filled bags to an outflow station adjacent to the top closure and sealing mechanism 4. The transmission mechanism 0) is advantageously in the form of a turret consisting of a pair of end housings (175) each having a bald (176) rotatably supported by a bearing (177) on a fixed support shaft (178). The turret (G) has eight gripper assemblies σ-Dt-, and the turret is indexed through 1.11 revolutions in simultaneous relation to the reciprocation of the mandrel. As best shown in FIGS. 3, 4-9, and 6, the indexing drive mechanism
) The transmission gear of the indexing output shaft meshes with the gear (188α) at one end of the shaft (184).

A gear (188b), which is the same as the gear (188α), is provided at the other end of the shirt (184) and is connected to the gear (188α).
8a, ) and (188h) are the respective shafts (18
6) Drive the gears (185) at one end of each shirt)
(186) connects to the hub (176) via the gear (187)
gear (188). Both ends of the turret are thus driven in unison, the indexing drive shirt l- (77h) of the indexing drive mechanism is driven each 1/3 rotation of the shaft (76α) in the indexing drive mechanism, and the turret is It is indexed through 173 revolutions and then stopped at the position shown in FIG.
9) Each time, cycle through one complete revolution to extend and retract the mandrel.

The bag gripper assembly is attached to the turret in a manner so as to maintain the bag gripper assembly in a preset orientation when the turret is indexed. 1st
As best shown in FIGS. 5 and 16, the gripper assembly 1 is spaced radially outwardly from and for rotation about an axis parallel to the axis of rotation of the turret. Cantilevered shaft (191) at each end for positioning
The cantilevered shaft (1') 1) is rotatably supported by a bearing (192) of the turret end housing (175). The gear (198) is connected to the support shaft (17
8) is secured against rotation, thereby being held against rotation, the gear (191) meshes with the idler gear (194), and the idler gear (194) is cantilevered) (191) The gear (19) fixed to
5) is arranged in mesh with. Gear (198)
and (195) have the same pitch diameter and the turret is 1/
When indexed through three revolutions, the gripper assembly (191) also cantilevers one-eighth of a revolution relative to the turret housing to maintain the gripper assembly in a fixed position relative to the horizontal. do.

Gripper assembly a has a plurality of pairs of gripper jaws that grip opposite sides of the open end of the sleeve as the sleeve advances to the bagging station; Operates to support and hold the opening of the bag as it is transferred from the bag opening station to the continuous filling station and closing station. As best shown in Figures 18-21, the bag gripper assembly weights each have a first jaw frame (201), the first jaw frame (201) having a cantilever shaft (191). ) is supported at both ends by common L-shaped brackets (202). The first jaw frame (201) has a plurality of outer jaw members (208) arranged at intervals.

The jaw members (208) are spaced apart a distance slightly greater than the width of the mandrel, and are located relative to each one of the mandrels and have outer jaw members (208) spaced apart a distance slightly greater than the width of the mandrel.
The outer jaw surfaces (208(
Z) and (208b) are located along the outside of the groove end of the sleeve as the sleeve is advanced by the mandrel into its forward or bagging position. The jaw gripping mechanism also has a second jaw frame (204) and a third jaw frame (205), each of which is configured for limited movement relative to the first jaw frame (201).
and the jaw frame (201) for limited movement relative to each other in the longitudinal direction by a port (206) extending through the slot opening (207) of the second and eighth frames. ing. The second jaw frame includes a pair of inner jaw members associated with each lane of the packaging device, and a plurality of pairs of inner jaw members (
208), and the third jaw frame (205) supports a plurality of corresponding pairs of inner jaw members (209). Inner jaw members (208) and (209) have a general L-shape and extend inwardly from their respective frames, terminating in downwardly extending jaw portions that extend toward the opening of the bag. It is adapted to cooperate with the outer jaw surfaces (203α) and (208A) of the first jaw frame to secure the ends. 2nd jaw frame, inner jaw part (208)
Part of the outer jaw (208) of 1&Nijiyo one part (208)
Forced by a tension spring (211) whose ends are attached to the first Jyo frame (201) and the second Jyo frame (204) in the direction of movement towards the eighth Jyo frame (201) and the second Jyo frame (204),
The jaw frame is configured such that the inner jaw member (209) is
Jiyo frame (201) and 8th Jiyo frame (2
It is strongly forced by a tension spring (212) whose end is attached to 05).

In this way, the inner jaw members (208) and (209) are
Those bags are forcefully forced into gripping position.

The feed is contributed to actuate the gripper jaws at different stations, with a plunger (215) slidable on each of the cantilevered shafts (191), as best shown in Figures 15 to 17. and is forcibly biased to the retracted position by a spring (216).

The second Jyo frame (204) has a member (204α) at one end arranged to engage with the inner end of one plunger (215) of the turret housing, and the eighth Jyo frame (205) has a member (205z) at one end arranged to be engaged by the other plunger. Followers (217), conveniently in the form of rollers, are provided at both outer ends of the plunger.

As shown in FIG. 3, a pair of fluid actuators (218α)
and (218A) are attached to the intermediate frame portions (37) and (g), respectively, in a position to engage the plunger of the gripper assembly when the gripper assembly is positioned at the bag opening station. ing. Another pair of fluid actuators (2tsα) (219A
) is the bag gripper assembly 0 when the gripper assembly is in the top-to-top loss and sealing station.
At the position where the plunger of 1) engages,
The control valve (2) is attached to the intermediate frame section (3D and (G)).
20) is provided to control the application of fluid pressure to the fluid actuators (218α) and (218A), and is provided with a valve (
220) has an electrically responsive actuator (220α) active under the control of a switch (221) actuated in time relation to the reciprocation of the mandrel, and is schematically operated by the receiver gripper fingers' as shown in FIG. 34. As shown, the fluid actuated device (218α) and (218h
) before the sleeve is advanced to its fully raised position, the inner bag gripping jaws (20B) and (209)'
i Offset the inner gripper jaws (208) and (209) of the springs (211) and (212) so as to move them towards each other in their relaxed position, and then when the mandrel reaches its fully raised position. 18 and 19, the inner gripper jaws (208) and (209) are operated to loosen them to allow them to be moved into the home position shown in FIGS. 18 and 19.

In this way, the inner gripper jaws (208) and (209)
) of the bag opening device are preferably in close proximity to each other, as shown at the bottom of FIG. Move to a position smaller than the width of (181). When the fluid actuators (2181) and (218b) subsequently act on their jaw loosened positions, the jaws (
208) and (209), the both sides of the bag are connected to the outer jaw surface (208) and (209).
08a) and (20Bb), move them apart laterally. After the mandrel reaches its fully raised position, and as shown by the receiver gripper fingers' clearly shown in FIG. ')but·
They are moved to their fixed position before being operated to laterally seal and cut the bags from the sleeve. The gripper jaws thus operate to grip the open end of the bag to hold it open and to support the bag after it has been cut from the sleeve.

When the transmission mechanism is indexed, the gripper assembly transfers the bag while holding the bag with the open end facing upward, and the bag is loaded at the bag opening station below the dispensing device σ). loaded onto the station. The packaging apparatus is adapted to package a variety of different products having items and fluid materials, such as powdered materials, liquid materials, semi-liquid materials, and the like. The product dispensing device 0) is of a type operable to apply the desired quality of the product to the bag, or is of a form operable to apply the desired quality of the product to the bag, or from the packaging device in a manner that allows operation of the dispenser in time relation to the cycling of the packaging device. be of the form operated under the control of the signals of
or of a type adapted to generate control signals for controlling the cycling of the packaging device in time relationship with the distributor device. Figure 20 and 2
In the distributor device shown in Figure 1, the distributor has an actuating device (2
As shown schematically in FIG. , camshaft (78 cam (78d) K
The actuating device (22B) is fed back by a valve (224) with an electrically responsive pulp actuating device (224α) activated in conjunction with the packaging device by a torsionally actuated switch (229).

There are some materials, such as powdered materials, that can counteract the heat sealing of the top of the bag if they come into contact with the inner wall of the bag in the area to be heat sealed.

Therefore, the distributor is (225) in FIGS. 20 and 21.
Conveniently, the spout is provided with a vertically moving spout, as shown in FIG. It can be moved to an extended, lowered position as shown in FIG. Fluid operated device (2
Means such as 26) are provided for moving the spout between its raised and lowered positions, and as shown schematically in Figure 38, the valve (229) is a fluid actuated device. (226). Pulp (229)' - cam shirt) (7+11) no cam (78
c) has an electrically responsive actuator (229α) active under the control of a switch (280) actuated by c). 84th
The filling spout rises and the filling is entrained during the indexing of the turret, as shown diagrammatically by the product filling ' and one filling spout, which are clearly marked in the figure. The filling spout is lowered and filling is possible after the turret is indexed. 84th
The indexing of the turret, as indicated by the 5 turrets' drawn in the figure, is accomplished during a relatively small portion of the overall cycle time of the packaging equipment, and this is used to fill the bags at the filling station. , allowing a large portion of the entire packaging equipment cycle time.

The transmission mechanism (q) maintains the bag with the open top facing upward as it transfers the bag from the filling station to the top closure loss and sealing station. Top closure and sealing mechanism (
) are mounted to move the bags into and out of position to engage them in close proximity to their upper ends. In a preferred embodiment, the bag sealing mechanism and closing mechanism are mounted for movement along a vertical path into and out of the bag receiving position.
As best shown in FIGS. 31-31, the bag opening and sealing mechanism
), a guide bar (282) extending between the end members thereof, and (
288). The frame is supported by a bracket (284) fixed to a rod (285), and the rod is supported by a guide bushing (286) in the middle frame part Cl7) and (g) (Figs. 5 and 8).
and (287) are supported for vertical sliding movement. The top closure and sealing mechanism section) rises and falls in time relation to the movement of the mandrel and the movement of the turret, and the top closure and sealing mechanism section rises and falls in time relation to the movement of the mandrel and the movement of the turret, as shown in the curved line ``top seal'' in Figure 34. is advantageously raised and lowered as the mandrel is raised and lowered, with the lane reaching its fully raised position substantially after indexing of the turret is complete. As best shown in FIGS. 3, 5, and 8,
The gear (241) of the indexing drive mechanism (output shirt F C76a) within 7η rotates the crankshaft (248) so that the crankshaft rotates once each time the output shirt CT6a) is driven one rotation. Gear (242)
quarrel with each other. The crankshaft is shown in Figure 5 (2).
44tL) and (244A), the two cranks are connected to the end member (281) via a link (245) so as to raise and lower the end member as the cranks rotate. be done.

As best shown in Figures 27 to 31,
The top closure and seal jaw mechanism N has a first jaw frame having spaced apart frame members (246) and (247), the frame members (246) and (247) comprising:
Bushings (24) of guide bars (282) and (288)
8) and (249) in a slidable manner. A first set of sealing jaws (251), one for each of the lanes of the multi-lane wrapper, are supported on and between frame members (246) and (247). A second Jyo frame having frame members (252) and (253) is also attached by bushings (254) and (255) of the guide rods (233) and (232) for movement along the guide rods; A second set of sealing jaws (256) for each lane of the multi-lane wrapper are attached to the frame member (256).
2) and (253) and extends between them. The sealing jaws (251) and (256) are arranged in opposing pairs on relative sides of the bag when the bag is supported by the turret at the top sealing station and the closure closure, and the frame secures both sides of the bag simultaneously. and for sealing, use the jaws (251
) and (256) are movable relative to each other so as to simultaneously carry opposing pairs. One of the six pairs of jaws (256) is heated to effect a heat seal on the overlapping bly and is connected to an elongated heat rod (256) as shown.
58) are mounted within frame members (252) and (253) to heat the same and thereby heat the jaws (256) to a sufficient temperature to act on the heat seal.

Side gripper jaws are provided for securing the vertical ends of the bag at the closure and sealing station to support the bag being loosened from the transmission mechanism and to allow the bag to be retracted into the closed position. . The plurality of pairs of gripper jaws (261) and (262) are
A pair for each lane of the device is provided to grip one side edge of the bag. Side gripper jaw (2
61) are each mounted inside a respective one of the sealing jaws (251), each having its jaw surface (z6xa) arranged in substantially the same vertical plane as the jaw surface of the sealing jaws (251). The side gripper jaws (262) are pivotable by one pin (263) of the frame member (246) for pivoting movement towards and away from each of the side gripper jaws (261). installed. The side gripper jaws (262) are fitted with torsion springs (264) (Fig. 31).
jaw actuating pins (266) are provided at spaced apart positions along one of the guide bars (232) to retain the
midway between their ends support the side grid bars (262) and also support the frame members (246) and (
247) support the side gripper jaws (262) in their open position when in the position shown in FIG.

The side gripper jaws (262) are attached to the frame member (24).
When the spring (2) moves to the right to the position shown in Figure 28, the spring (2)
64) side grip barge E-(261) under the offset
move towards. Pairs of side gripper jaws (261) and (262) are arranged to grip one side edge of each one of the bags, and a plurality of pairs of side gripper jaws (268) and (269) are arranged to grip one side edge of each one of the bags. A pair for each lane is provided for gripping the other side edge of the bag. The side gripper jaw (268) is
The sealing jaws (251) are each mounted for limited movement relative to each other in a direction generally parallel to the length of the sealing jaws and are shown in FIGS. 27 to 29 and 81. supported by head pins (271) on the inside of each of the sealing jaws (251), as shown in FIG.
extends through an elongated slot in the side gripper jaw (268). A guide pin (272) of each side gripper jaw (268) extends through an aperture in the frame member (247), and a compression spring (273) respectively The side gripper jaws (268) are located between the frame member and the head of the pin (272) for full force forcing. Each side gripper jaw (269
) for movement therebetween, and also for the rocking movement associated between the open position as shown in FIG. 27 and the closed position as shown in FIGS. 28 and 29. It is pivotally supported in each side gripper jaw (268) by a pivot pin (274). Joe (2
69) are also forcefully forced into their closed position by torsion springs (275), and actuating pins (276) are provided at spaced locations along the fixed frame member (277) and engage the frame member (246). (247) is the second
They are arranged to support the jaws (269) intermediate their ends in order to retain the jaws (269) in their open position when in the position shown in FIG. The side gripper jaws (269) close their closed position [in the J position] under the bias of the spring (275) when the frame members (246) and (247) move to the right to the position shown in FIG. Moving. Elongated cam member (278)
are mounted on the frame members (252) and (253) for movement therebetween, with side gripper jaws (268) in directions toward and away from corresponding side gripper jaws (261) and (262). It has a cam surface that hooks the end of the pin (272) so as to control the movement of the pin (269). As shown in FIGS. 27-29, the cam member (278) is in the inner position.
E - Insert the pin (268) and (269) to hold it.
a cam surface (278a) that normally supports the jaws (272) and a second cam surface (z7s) that allows the jaws (268) and (269) to move outwardly under the offset of the spring (273).
b) has. One fluid actuator (282) (fifth
and FIG. 33) is provided to move the frame members (246) and (247) to the right, as shown in FIGS. 27 to 29, and the second fluid actuator (281) (
5, 27, and 33), the frame member (252) and (25
3) to the left. Valve (28
3) and (284) are actuating devices (281) and (282)
control the application of fluid pressure to the cam shirt)
It has electrically responsive actuators (283a) and (284a) active under the control of switches (285) and (286) actuated by cams (SOa) and (soe) of (SO). The fluid actuators (281) and (282) are operated in time relation to each other and to the vertical movement of the top closure and sealing mechanism (K), and are operated in time relation to each other and to the vertical movement of the top closure and the sealing mechanism (K), and the "top sealing clamp" and The top seal clamp mechanism and top seal bar open when mechanism (K) is raised, as indicated by the "top seal bar." The fluid actuation device (282) is operated after the mechanism (K) has moved to its raised position and before the actuation of the actuation device (281), the side gripper jaws (261),
(262), (268), (269) are the second
As shown in Figure 8, both ends of the bag are first moved to their closed position to secure them. Actuation device (28
1) is then operated and the camshaft (z7sb) is positioned such that the side gripper jaws (268) and (269) can move outwards before the sealing jaw (256) closes towards the bag. , thereby allowing the top of the bag to be retracted into the closed position prior to closing the jaws (251) and (256) and heat sealing the top of the bag.

As shown schematically in Figure 33, the valve (28
B) controls the application of fluid pressure to the fluid actuators (2tc+a) and (n9b), and controls the application of fluid pressure to the camshaft - cam (SO
C) has an electrically responsive actuator (zssa) active under the control of a switch (289) actuated by C). cam(
SOC) after the side gripper jaws of the top closing and sealing mechanism (K) have moved into their fixed position, as shown diagrammatically by the "feeding gripper fingers" marked in FIG. such that the turret gripper jaws (208) and (209) are moved to their slack position before the sealing jaws (251) and (256) are moved to their sealing position;
An actuating device (zt
9a) and (zt9b).

After the top of the bag is sealed, the actuators (281) and (282) for the top sealing mechanism (K) are moved to their open or loosened position and the sealed package is then transferred to the delivery conveyor (L). allowed to fall on top. In this embodiment, the delivery conveyor (L)
is of the endless type with an upper run located below the top closure and sealing mechanism (K) to catch the special feature from which the bag is fed. Some suitable means include an outfeed conveyor (L
), which may be driven continuously, for example, or which may be time-related to the operation of the packaging device, as illustrated diagrammatically by the "feeding conveyor", which is delineated in FIG. 34. is driven in an intermittent manner. The intermittent drive for the exit conveyor is such that the packaging device advances the conveyor a preset distance each time it cycles (shirts) (
243).

The structure and operation of the packaging device can be easily understood from the foregoing. One end of the strip of web material is formed into a sleeve about the mandrel, the sleeve advancing with the mandrel during at least a portion of the mandrel's forward travel, and the mandrel supporting and guiding the sleeve as it is fed. A portion of the end of the mandrel is moved through the end of the sleeve to provide a positive opening of the groove end of the sleeve, and the mandrel is then moved through the end of the sleeve to form a bag with an open end. In the inner position, it is laterally sealed and cut and drawn into the sleeve.

a gripper assembly of the turret is operated at the bag opening station in time relationship with the reciprocation of the mandrel to grip the open end of the bag as the bag is advanced to a forward or bag opening position; The turret is then operated to sequentially transfer the bags with their open ends up to a bag opening station and to a top closing and sealing station. This allows the filling of one bag and the closing of the previously filled bag while another bag is formed and advanced with the mandrel to the bag opening station.

The length of the bag is easily adjusted by adjusting the travel of the mandrel, and furthermore, the length of the bag is automatically correlated with the printed marks on the strip material to affect the record of the printed marks with the bag. related to.

The apparatus for forming the web into a sleeve, for "feeding" the sleeve, and for laterally sealing and cutting the sleeve is such that the apparatus allows multiple spaced adjacent lanes simultaneously. minimizes the overall size of the multi-lane device, making it particularly suitable for use in multi-lane devices for a growing number of products.

[Brief explanation of drawings]

1 is a perspective view of a packaging apparatus for producing bag-forming packages according to the invention; FIG. 2 is a diagram showing the path of the band web material and the bags as they pass through the packaging apparatus; FIG. FIG. 4 is a top view of the packaging device with parts of the moving housing and product dispensing device; FIG. ) - (4) A front view on the plane, Fig. 5 is a vertical cross-sectional view on the (5) - (5) plane of Fig. 3, and Fig. 6 is a front view on the plane (6) - (6) of Fig. 4.
7 is an end view of the other end of the packaging device in the (7)-(7) plane of FIG. 4, and FIG. ) −
(8) A horizontal and vertical cross-sectional view through the packaging device in a plane, and FIG. 9 is a broken horizontal cross-sectional view in the (9)-(9) plane of FIG. Figure 10 is (10) - (10) in Figure 9.
A front view of the vertical sealing mechanism in a plane, FIG. 11 is a cross-sectional view passing through the vertical sealing mechanism in the (11)-(11) plane of FIG. 10, and FIG. 12 is a (12) in FIG.
18 and 14 show the vertical sealing mechanism and feeding mechanism on a larger scale than in FIG. 8, and (13) in FIG. -03) A broken horizontal cross-sectional view in a plane, Figure 15 is an end view of the transmission turret, Figure 16 is a vertical cross-section through the turret in a plane, Figure 17 is on a larger scale. FIG. 18 is a plan view of one side of the bag gripper assembly of the turret, and FIG. 19 shows the bag shown in FIG. 18. 20 and 21 are cut-away views showing the product distributor and nozzle in different travel positions, and FIG. 22 is a front view of the gripper assembly showing the bottom sealing mechanism and cutting mechanism on a larger scale than in FIG. Figure 23 is a cross-sectional view through the bottom seal and cutting assembly in the plane of Figure 22; Figure 24 is a cross-sectional view through the bottom seal and cutting assembly; 25 and 26 are cross-sectional views cut through the bottom seal and cutting jaw in the H-H plane of FIG.
- (c) Cutaway views of the bottom sealing mechanism and cutting mechanism in the plane; Figures 27 to 29 show the bag opening mechanism and sealing mechanism in different travel positions and on a larger scale than in Figure 8; C) - 2) A broken horizontal sectional view in the plane, Figure 30 is a cross sectional view through the top closing mechanism and sealing mechanism in the 111 plane in Figure 27, Figure 31 is a cross sectional view in the 0υ-H plane in Figure 27. A cross-sectional view through the top closing mechanism and sealing mechanism, Figure 32 is the same as Figure 17)
33 is a schematic diagram of electrical and pneumatic control for the packaging device, and FIG. 34 is a time diagram for the packaging device. (A)・・・・・・・Mandrel (B)・・・・・・
−・・Side seal device

Claims (1)

Claims: (1) an elongated mandrel having a front end; means for longitudinally moving said mandrel (v) along a feed path during forward and return strokes; and a band web around said mandrel. means for forming an end of the material into a sleeve with a grooved end, the sleeve with the grooved end facing forward;
At least during a portion of the forward movement of the mandrel,
A feeder 9 for advancing the feeder to a forward position along the feeder path.
means for opening the groove end of the sleeve;
lateral sealing means for laterally sealing said sleeve at a position spaced inwardly from the grooved end of said sleeve so as to form a bag in said sleeve opening at said grooved end; means for cutting the sleeve at a location inward of the transverse seal so as to separate the sleeve and further providing an unsealed groove end in the remaining portion of the sleeve; Packaging equipment for producing bag-form packages from strip web material. (2) The feed path extends upward, and the groove end of the sleeve is the upper end thereof.
The packaging device described in item 1). (3) means for opening the grooved end of said sleeve such that the front end of said mandrel extends into the grooved end of said sleeve and thereafter prior to lateral sealing of said sleeve to open the same; A packaging device as claimed in claim 1, characterized in that it comprises means for manipulating the front end of the mandrel to be retracted into the three at a distance greater than its length. (4) The front end of the mandrel has a sleeve opening device mounted for extension and retraction relative to the mandrel in a direction perpendicular to the feed path, and means for opening the groove end of the sleeve. said feeding means for extending said sleeve opening device associated with a mandrel and associated with a groove end of a sleeve to open said sleeve opening device associated with a mandrel and thereafter retracting said sleeve opening device associated with a mandrel; The packaging device according to claim 1, further comprising means for operating in a simultaneous relationship with the means. (5) The feeding means includes a feeding means attached to reciprocate along a course parallel to the feeding path, a driving means for moving the feeding means in forward and return strokes, and a feed jaw actuating means for moving the feed jaw means into feed engagement with the sleeve, at least during a portion of the forward stroke of the feed jaw means, so as to advance the sleeve; A packaging device according to claim (1). (6) The means for forming the band web material into a sleeve comprises:
A clamp jaw means is mounted at a fixed position along said feed path, and when said feed jaw means is moved out of gripping engagement with the sleeve, said clamp jaw means is moved in the longitudinal direction of the strip web material. 5. A packaging device according to claim 5, further comprising actuating means for moving the package into gripping engagement with the ends thereof. (7) the band web material has indicia at spaced locations along the desired bag length, and sensing means for sensing the spaced indicia on the band web material; responsive to said sensing means to control a feed jaw actuating means and for altering a portion of the forward stroke of said feed jaw means while said feed jaw means is in feed engagement with a sleeve; The packaging device according to claim 6, further comprising operating means. (8) The feeding means is mounted to move with the mandrel during at least a portion of the forward movement of the mandrel, and the feeding jaw actuating means fixes the sleeve to the mandrel during at least a portion of the forward movement of the mandrel. The package device according to claim 41. (9) The means for opening the three 1
means for projecting the front end of the mandrel through the grooved end of the sleeve 1 while the sleeve is in its forward position; and the bag was cut off from the three 1 so as to grip the side walls of the open groove end of the sleeve while the front end of the mandrel protrudes through the groove end of the sleeve in said forward position of the second half so as to hold the groove end. 2. A packaging device according to claim 1, further comprising means for manipulating said gripper jaw means in time relation to said feeding means so as to subsequently support a bag. a [grip for gripping the end of the opening groove of the sleeve,
the gripper means having at least first and second outer gripper jaw means disposed proximate opposite sides of the groove ends of the strip when the strip is in its forward position; , and after the sleeve has been opened, at the groove ends of the sleeve, the retracted state is sufficiently close that both the receivers can be taken, and the two sides of the sleeve are widened and the respective first and second two outer gripper jaw means in relation to each other and said respective first and second outer gripper jaw means in a laterally spaced extended state so as to be secured to said respective outer gripper jaw means; Packaging device according to claim 1, characterized in that it has first and second inner gripper jaw means movable in relation to each other. Ql) The means for opening said sleeve comprises means for operating in time relation with said feed 9 means so as to project the front end of the mandrel through the sleeve while the sleeve 1 is in its forward position. A packaging apparatus according to claim 2, characterized in that: (a) a first station for overlapping the groove ends of the mating sleeves in the forward position; and at least one other station spaced apart from the first station. a bag conveying means movable to the belt, said bag conveying means comprising a bag gripper means operable to grip the grooved end of the sleeve after the sleeve has been advanced to its forward position by said feeding means; and means for moving the bag transfer means from the first station to the one other station after the bag is separated from the first station. Q31: A packaging device according to claim 02, characterized in that it has means for stuffing products into bags at another station of one of the bag conveying means. and a transmission means for moving said gripper assembly from a bag opening station overlapping the groove ends of the sleeves in said forward position to a bag filling station;
The assembly includes first and second laterally spaced outer gripper jaw means and first and second inner gripper jaw means disposed between the outer gripper jaw means. , wherein said first and second inner gripper jaw means are spaced inwardly from said respective first and second outer gripper jaw means and said respective first and second means for mounting said inner and outer gripper jaw means for relative movement between a lateral fixed state of said outer gripper jaw means; and a gripper of said gripper assembly.
further said transmission for operating said gripper assembly to grip the ends of sleeves at said bag opening station from their loose condition to their fixed condition; When the means move the gripper assembly to the bag opening station or the bag filling station, maintaining the gripper jaw means in their fixed state so as to transfer the detached bags to the bag filling station. 2. A packaging device according to claim 1, further comprising means for filling the bag with the product from the open end of the bag at the bag filling station. α9 The transmission means is configured (and arranged) to adapt the gripper assembly to securely hold the bag with the groove edge during transfer to a bag filling station. The packaging device according to item 14). (161) said transmission means operates said gripper assembly to move said gripper assembly from a bag filling station to a bag closure loss region, and includes means at said bag closure loss region for closing and sealing the open end of the bag; A patent characterized in that (as stated in claim ai)
The transmission means is arranged to move the gripper assembly from the bag filling station to the bag closing loss station, and the transmission means is arranged to move the gripper assembly from the bag filling station to the bag closing loss station, and includes means at the bag closing loss station for engaging and supporting the bag; The gripper jaw means of the gripper show assembly includes means for moving the gripper jaws into a relaxed state, and sealing jaw means at the bag closure closure for closing and sealing the open end of the bag. 141. The packaging device according to claim 141.111 [1] The means for supporting or gripping the bag in the bag closing loss joint is located at a position below the upper end of the bag and at an opening position. The package according to claim 171, further comprising a first and second pair of operable side gripper jaws between a closed position and a closed position for longitudinally securing opposite ends of the bag. Apparatus. 1!3 The first and second pairs of side gripper jaws are in a closed position for longitudinally securing opposite ends of the bag; Claim 0, further comprising means for relatively moving the first and second pairs of side gripper jaws in the -]j direction so as to increase the spacing between them.
110. The packaging device according to item 110. (20) means for forming an end of the band web material into a hollow sleeve portion with a grooved end, and directing said hollow sleeve portion forwardly along an upwardly extending path parallel to the axis of said hollow sleeve portion; means for advancing the groove end upwardly into the raised position; means for opening the upper groove end of the hollow sleeve; a plurality of gripper assemblies; and a plurality of gripper assemblies in the raised position. a transmission means for moving the upper groove 41 of the hollow sleeve portion from a first station to at least a second station, each gripper assembly having a first and a second laterally spaced an outer gripper jaw means and first and second inner gripper jaw means disposed between said outer gripper jaw means, wherein said first and second inner gripper jaw means are arranged between said respective inner gripper jaw means. relative movement between a relaxed condition spaced inwardly from the first and second outer gripper jaw means and a laterally fixed condition of said respective first and second outer gripper jaw means; and laterally sealing the sleeve part at a location below the upper groove end of the sleeve 1 so as to form a pouch opening at the end of the sleeve part with means for attaching said inner and outer gripper jaw means. a k-th horizontal seal handle, a means for cutting the lower sleeve part of the horizontal seal so as to separate the bag from the first part of the three, and a means for gripping the end of the hollow three-two at the first station. and said transmission means for operating said gripper assemblies to move inner gripper jaws of said gripper assemblies from their loosened condition to their fixed condition; Like moving to a station,
means for maintaining the inner gripper jaw means in a fixed condition when the gripper assembly is moved from the first station to the second station; A packaging device for producing shaped packages from strip web material, characterized in that it comprises means at a station. Cυ Said transmission means connect the turret mounted for rotation about a general horizontal turret axis and the gripper for rotation related to a general horizontal axis angularly spaced about said turret axis. means for attaching an assembly to the turret; means for indexing the turret to move one gripper assembly from a first station to a second station; and an open end when the turret is indexed. and means attached to a turret for maintaining said gripper assembly in a preset position supporting the bag facing upwardly. Device. (22) said transmission means includes a turret mounted for rotation about a general horizontal turret axis and for rotation related to a general horizontal axis spaced one angle apart about said turret axis; , means for attaching three of the gripper assemblies to the turret, a second gripper assembly being moved from the second station to a third station, and an eighth gripper assembly being attached to the third station. means for indexing said turret to move one gripper assembly from said first station to said second station during movement from said first station to said turret; and when said turret is indexed; means attached to the turret for maintaining the gripper assembly in a preset position; and means for moving the inner and outer gripper jaws into a relaxed condition.
A packaging device according to claim 1, characterized in that it comprises a gripper-loosening means at said eighth station for manipulating the assembly. 123 Claim No. 2 characterized in that it has means in the third station for closing the bag.
The packaging device described in Section 2. (24) first and second side gripper jaw means in a third operable station at the same time in the open position and in the closed position vertically fixing the end of the bag in a position below the top end of the bag; , sealing jaw means in a third station, said gripper loosening means, said first and second side gripper jaw means, and said sealing jaw means for closing and sealing the open end of the bag; , a mandrel disposed within a sleeve and having an upper end; so that the gripper assembly in the station opens the same while moving into its fixed state;
Claims characterized in that the mandrel comprises means for extending the upper end of the mandrel into the groove end of the sleeve and means for retracting the front end of the mandrel into the sleeve before the transverse sealing of the three. The packaging device described in paragraph (company). @ Forming the ends of the strip web material around an elongated mandrel into a sleeve 1 with grooved ends, said mandrel being moved longitudinally along a feed path during forward and return strokes, at least part of the forward travel of said mandrel. At the step, the sleeve 1 with the groove end facing forward is advanced along the feed path to a forward position, the groove end of the sleeve is opened, and the inside of the groove end is opened so as to form a bag in the sleeve opening at the groove end. Seal the sleet 1 laterally at locations spaced apart, cut the sleet 1 at a location inward of the lateral seal, and attach the unsealed groove end to the remainder of the sleeve so as to separate the bag from the sleeve. A method of manufacturing a bag-forming package from a strip web material, comprising: providing a bag-forming package; (27) The feeding path extends upward, and the groove end of the sleeve is the upper end thereof.
62. A method of manufacturing a bag-forming package according to paragraph 61. C) 81 The opening of the groove end of the sleeve 1 is made by extending the front end of the mandrel forward into the groove end of the sleeve so as to open the same, and then before the transverse sealing of the sleeve, by opening the same by a distance greater than the desired bag length. In 111,
Claim 2e characterized in that this is achieved by retracting the front end of the mandrel into the sleeve.
A method of manufacturing a bag-forming package as described in Section 1. (2) Engage the groove ends of the sleeve while the three 1 is in its forward position and at its groove ends opened by the front end of the mandrel so as to hold the groove ends of the opening of the sleeve when the mandrel is retracted. A method for manufacturing a bag-forming package according to claim c!bar, characterized in that: ■ the groove end of the sleeve is held open when the mandrel is retracted, and the bag is removed from the sleeve; Patent characterized in that the sleeve 1 grips the side walls of the grooved end of the sleeve while in its forward position and at its grooved end opened by the front end of the mandrel, so as to support the bag after being cut off. A method of manufacturing a bag-forming package according to claim 1. c(1) A patent characterized in that the bag with the open end facing upward is transferred to a filling station and the product is stuffed into the bag at the filling station. A method for manufacturing a bag-forming package according to claim 1.021 A gripper assembly is arranged at a bag opening station where the groove ends of the three 1 are overlapped at a front position of the three 1, and the gripper assembly the body has first and second laterally spaced outer gripper jaw means and first and second inner gripper jaw means disposed between the outer gripper jaw means; Said inner and outer gripper jaw means are arranged in a relaxed state in which said first and second inner gripper jaw means are spaced inwardly from said respective outer gripper jaw means;
The inner gripper jaw means is relatively movable between a fixed state disposed laterally of said respective first and second outer gripper jaw means, and the sleeve 1 is in said forward position. 22. Producing a bag-forming package according to claim 21, wherein said inner and outer gripper jaws are relatively moved from their relaxed state to their fixed state after advancing said Method. (33) Forming the grooved end of the band web material at the front end of the mandrel into a sleeve with a grooved end, and moving the sleeve with the grooved end facing forward to a forward position along a path parallel to the length of the sleeve. The front end of the mandrel and the front end of the three 1 are moved relative to each other so that the front end of the mandrel extends to the groove end of the three 1 so as to open the same, and then the front end of the mandrel is The front end of the mandrel and the front end of the sleeve 1 are moved relative to each other so as to be retracted into the sleeve, and the front end of the mandrel is retracted into the sleeve so as to form a pouch in a band opening at the front end of the sleeve. A bag made of strip web material, characterized in that, when filled, it laterally seals the sleeve at a location spaced inwardly of the groove end of the sleeve and separates the bag from the sleeve 1 at a location inwardly of the transverse seal. A method of manufacturing a formed package.